[Elecraft] ultracapacitor (was hammcom power supply)

[cloud runner]

Perhaps an engineer on the list can help with this...  I am fascinated by the HammCom powersupply using an ultracapacitor (or supercapacitor) to deal with intermitten power demand of CW.  

It must be a simple task to add such a thing to, say, an Astron RS12 power supply so that it would handle the CW demands of a KPA-100 in CW or SSB mode.  Used Astron RS12 are all over eBay for in the order of twenty dollars.

Exactly how might this be done???

73,  Fred kt5x